Study: Friendship in chimpanzees

Target Audience: Scientists and Professors

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This module includes the following materials:

• High resolution slides of figures [PPT]
• To learn more, check out these popular science articles:
  • No grumpy old men in the world of chimps (New York Times)
  • Ageing chimpanzees choose old friends over new connections (BBC)
• Videos of Kanyawara chimpanzee behavior:

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Relevant Publication: Rosati, A. G., Hagberg, L., Enigk, D. K., Otali, E., Thompson, M. E., Muller, M. N., Wrangham, R. W. & Machanda, Z. P. (2020). Social selectivity in aging wild chimpanzees. Science, 370, 473-76. [Publisher’s Version] [PDF] [Supplementary]

Funding Support for Module: NSF #1926737 to Zarin Machanda; NSF #1926653 to Alexandra Rosati